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Finding the Fourth Proportional to 6,349.48, 8,762.22 and 3,555

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Solution

The fourth proportional to 6,349.48, 8,762.22 and 3,555 is: 4,905.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,349.48 : 8,762.22 = 3,555 : x
  2. Step 2: Convert to fraction form
    6,349.48/8,762.22 = 3,555/x
  3. Step 3: Cross multiply
    6,349.48x = 8,762.22 × 3,555
  4. Step 4: Simplify right side
    6,349.48x = 31,149,692.10
  5. Step 5: Solve for x
    x = 31,149,692.10/6,349.48
  6. Step 6: Final answer
    x = 4,905.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.